Light and dark Flashcards
(33 cards)
What is darkness?
The absence of light.
What is a light source?
A light source is something that has a light of its own.
What are shiny objects?
Objects that reflect light. They don’t make their own light.
Which animals make light of their own?
Firefly, Angler fish
Which is the main source of light in the daytime?
The sun.
Name things that the sun gives us.
Heat, warmth and light
How is a shadow formed?
A shadow is made when travelling light is blocked by an object.
How does light travel?
It travels in straight lines. It cannot bend. These are called rays.
How can a shadow change?
By moving an object closer to the source of light or moving an object further away from a source of light.
What is a solar eclipse?
When the moon is between the earth and the sun
What is light?
Light is a form of energy that helps us to see.
Is the moon a source of light?
No. It reflects light from the sun.
Name the 2 sources of light.
- Natural light
2. Artificial light
What is artificial sources of light?
It is the kind of light made by man.
Give examples of artificial sources of light.
Candle, torch, oil lamp, bulb, fire, headlights, floodlights.
What is natural sources of light?
It is the kind of light made by God.
Give examples of natural sources of light.
Sun, stars, glowworm, firefly, lightening, angler fish
What causes darkness?
Darkness of the earth is caused by lack of sunlight.
What are nocturnal animals?
Nocturnal animals are animals that are more active at night time than during the day.
Give examples of nocturnal animals.
Bats, Hippos, Catfish, owls, cockroaches
What are transparent materials?
These are materials that allow light to pass through them.
What are translucent materials?
These are materials that allow a little light to pass through them.
What are opaque materials?
These are materials that do not allow any light to pass through them.
Give examples of transparent materials.
Glass, Glass window, air, water
